2013321221 has 8 divisors (see below), whose sum is σ = 2032994304. Its totient is φ = 1993708080.

The previous prime is 2013321209. The next prime is 2013321253. The reversal of 2013321221 is 1221233102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013321221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2013321221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013321521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54056 + ... + 83358.

It is an arithmetic number, because the mean of its divisors is an integer number (254124288).

Almost surely, 2^2013321221 is an apocalyptic number.

It is an amenable number.

2013321221 is a deficient number, since it is larger than the sum of its proper divisors (19673083).

2013321221 is a wasteful number, since it uses less digits than its factorization.

2013321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29971.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2013321221 is about 44870.0481501859. The cubic root of 2013321221 is about 1262.7121433658.

Adding to 2013321221 its reverse (1221233102), we get a palindrome (3234554323).

The spelling of 2013321221 in words is "two billion, thirteen million, three hundred twenty-one thousand, two hundred twenty-one".